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Power Amplifier Air Tight ATM-3211
Description
Air Tight ATM-3211: Mono-block Power Amplifiers
The ATM-3211 represents the culmination of an ambitious five-year development project by Air Tight, aimed at harnessing the iconic 211 transmission triode in a push-pull configuration. The result is a monumental output exceeding 100W per channel, bringing the unmistakable charm of triode sound even to low-efficiency loudspeakers. The amplifier combines graceful delicacy in pianissimo with clear, saturation-free representation in fortissimo.
Key Technological Features
- Circuit Configuration: 1st stage: 12AX7 differential circuit; 2nd stage: 12BH7; Cathode-follower: 12BH7 parallel.
- Operating Mode: Pure Class-A operation up to 30W, Class-AB operation for power exceeding 30W.
- Components: Massive Tamura output transformers and high/low 2-composition power transformers ensure instantaneous power supply and prevent interference.
- Construction: Hand-scraped 15mm thick aluminum front panel, high-grade WBT input and speaker terminals, with all wiring and soldering performed by hand.
- Specifications: Wide frequency response of 10Hz – 50kHz (±1dB) achieved through optimized NFB circuitry.
Specification
| Valves employed | 1/12AX7, 3/12BH7, 2/211 |
|---|---|
| Rated output | 120 W (6 Ω / THD 2 %) |
| Frequency response | 10 Hz – 50 kHz (±1 dB) |
| THD | 0,06 % (1 kHz / 30 W) |
| Damping factor | 6 (1 kHz / 1 W) |
| Input sensitivity | 1 V |
| Input impedance | 100 kΩ |
| Power consumption | 550 VA |
| Dimensions (W x D x H) | 400 x 450 x 405 mm |
| Weight | 44 kg |
Air Tight
Air Tight is a Japanese company that has earned an excellent reputation in the world of high-end audio equipment. Founded in 1986 by Atsushi Miura, Air Tight has established itself as a leading manufacturer of tube amplifiers and phono preamplifiers with exceptional sound quality and craftsmanship. One of Air Tight's hallmarks is its unwavering dedication to traditional tube sound technology. While the audio industry has seen a shift to solid-state and digital amplification, Air Tight has remained committed to preserving the warm, natural sound for which vacuum tubes are renowned. This unwavering dedication to tube technology has made Air Tight an icon among audiophiles who appreciate the rich, immersive sonic experience that only tubes can deliver.
Manufacturer information (GPSR)
Manufacturer
A & M LIMITED
1-20 Demaru-cho, Takatsuki Osaka, 569-0076 Japan
+81-72-668-1760
Responsible person in the EU
DreamAudio, spol. s r. o.
Jaskový rad 213A 83101, Bratislava-Nové Mesto
info@dreamaudio.sk